1000 



EXPERIMENT STATION RECORD. 



Page. 

 Sulphate of ammonia. (iSee Am- 

 monium sulphate.) 

 Sulphates — 



determination in bread 20.5 



determination in soils 10 



effect on growth of red clover, 



U.S.D.A 625 



Sulphids, insecticidal value 61 



Sulphur — 



atomic, fungicidal value, N.J 146 



compound, soluble, analyses, 



Mich 4.36 



compounds, fertilizing value, 



U.S.D.A 221 



dioxid, effect on vegetation 526 



dioxid in atmosphere of Selby 



smokn zone 716 



dioxid injury to plants 745 



dust, fungicidal value, N.J 146 



effect on growth of red clover, 



U.S.D.A 625 



effect on plant growth Xll, 726 



effect on sugar beets 3.8 



fertilizing value 540 



In Iowa soils 27 



international movement 426 



mixtures. (See Lime-sulphur 

 mixture.) 



paste, fungicidal value, N.J 146 



relation to soil f<^rtility 27 



spray injury, prevention, Pa 154 



Sulphuric acid, manufacture, U.S. 



D.A 9 



Sulphurous acid — 



action on rock phosphate 220 



use In wine making. Cal 207 



Summers, American, classification, 



U.S.D.A lis 



Sun spot frequencies, U.S.D.A 117 



Sundrl timber, notes 240 



Sunflowor-seed cake, effect on milk 



and butter 570 



Sunflowers — • 



insects affecting 450 



marking factors In 341 



speolfii- and varietal characters- 237 

 Sunlight- 

 effect on flower color 237 



relation to respiratory activity. 30 

 Superphosphate — 



double, fertilizing value 35 



enriched, from precipitated 



phosphate 330 



fertilizing value— 22, 25, 330, 518, 519 



for cranberries, N.J 150 



for wheat under semiarld con- 

 ditions 519 



manufacture 724 



manufacture, U.S.D.A 329 



mixing with limestone 26 



Suppurative lesions in horses and 



calves 186 



Swamp fever — 



In New York 280 



InTestlgatioDs 185 



Page. 



Swede midge in Yorkshire 453 



Swedes — 



effect on milk and butter 570 



fertilizer experiments 431 



Busceptibillty to mildew 52 



varieties 865 



Sweet clover — 



culture, Colo 630 



culture under dry farming. 



Idaho 734 



culture under Irrigation, Colo 528 



inoculation 528 



seed, germination tests, Wyo 630 



Sweet corn — 



breeding experiments, N.J-,. 144 



culture, Ariz 232 



culture, N.Y. State 41 



papago, investigations, Ariz 232 



pollination studies, Ariz 233 



sugar content as affected by de- 



tassoling 434 



treatise 41 



viability tests, N.J 145 



Sweet peas — 



as an indicator of gas In soils_ 243 



treatise 238 



varieties 345 



Sweet potato — 



diseases, studies, Del 156 



scurf, .studios. U.S.D.A 646, 747 



weevil, notes 65 



Sweet potatoes — 



carbohydrate transformations 



In, U.S.D.A 522 



circulation In 135 



respiration experiments, U.S. 



D.A 426 



varieUes 431 



varieties resistant to stem rot- 444 



Swine — 



erysipelas in Great Britain 382 



plague, auto-lnffction in 279 



(See also Pigs.) 



Sycamore blii,'Iit, notes 56 



S}/h-anuit spp., notes 754 



Symphoromyla attacking man 554 



Symptomatic anthrax. (Sec Black- 

 leg.) 



Simrhi/trivm cndobioticum, studies. 844 



Syntrris lihocedrii n.g. and n.sp., 



description 364 



Syrphus fly, corn-feeding, life his- 

 tory 358 



Tachlnld.T, new nocturnal species-- 360 



Tttchinophfito (Hupoxtcna) sp., para- 

 sitic on sugar cane borer 753 



Tamarlndlllo, culture, P.R 736 



Tangerine — 



mildew, notes 649 



powdery mildew In southern 



California 447 



Tankage — 



analyses 371, 566 



analyses, Ind 263 



analyses, Tei 467 



